Question 843190
the sum of the vertex angles is 2880.
the sum of the angles of a polygon is given by the equation:
S = (n-2)*180


you have S.
you need to solve for n.


your equation is:


2880 = (n-2) * 180
divide both sides of this equation by 180 to get:
16 = n-2
add 2 to both sides of the equation to get:
n = 18


your answer is correct.
the formula to use is:
S = (n-2) * 180